Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking
cost sharing » risk sharing, cost savings
wang yong » wang yang, wang hyoung, wang yan
oil ying » oil using, oil line
ying shu » ying zhu, cong shu, ying hua
yong yi » yang yi, wong yi, yong kim
yi hua » li hua, ya hua, yi hui

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yi hua ((rent sharing) OR (cost sharing)) oil ying shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yi hua ((rent sharing) OR (cost sharing)) oil ying shu ;*".